User manual CASIO FX-570W

[. . . ] Never slide the display end of the unit into the cover. . . . . . 1 . . . . . 2 1 Safety Precautions Be sure to read the following safety precautions before using this calculator. Keep this manual handy for later reference. Caution This symbol is used to indicate information that can result in personal injury or material damage if ignored. Batteries · After removing the battery from the calculator, put it in a safe place where it will not get into the hands of small children and accidentally swallowed. · Keep batteries out of the reach of small children. If accidentally swallowed, consult with a physician immediately. [. . . ] When you press the 5 key When you initialize modes and settings by pressing A B 2 (or 3) =. When you change from one calculation mode to another When you turn off the calculator. k Error Locator · Pressing r or e after an error occurs displays the calculation with the cursor positioned at the location where the error occurred. 9 k Multi-statements A multi-statement is an expression that is made up of two or more smaller expressions, which are joined using a colon ( : ). · Example: To add 2 + 3 and then multiply the result by 4 2+3p\g-4= 2+3 5. Disp = Ans×4 20. k Exponential Display Formats This calculator can display up to 10 digits. Larger values are automatically displayed using exponential notation. In the case of decimal values, you can select between two formats that determine at what point exponential notation is used. · To change the exponential display format, press the F key a number of times until you reach the exponential display format setup screen shown below. F i x Sc i No r m 1 2 3 · Press 3. On the format selection screen that appears, press 1 to select Norm 1 or 2 for Norm 2. u Norm 1 With Norm 1, exponential notation is automatically used for integer values with more than 10 digits and decimal values with more than two decimal places. u Norm 2 With Norm 2, exponential notation is automatically used for integer values with more than 10 digits and decimal values with more than nine decimal places. · All of the examples in this manual show calculation results using the Norm 1 format. 10 k Decimal Point and Separator Symbols You can use the display setup (Disp) screen to specify the symbols you want for the decimal point and 3-digit separator. · To change the decimal point and separator symbol setting, press the F key a number of times until you reach the setup screen shown below. Disp 1 · Display the selection screen. fx-95MS: 1r Other Models: 1 r r · Press the number key ( 1 or 2) that corresponds to the setting you want to use. 1(Dot): Period decimal point, comma separator 2(Comma): Comma decimal point, period separator k Initializing the Calculator · Perform the following key operation when you want to initialize the calculation mode and setup, and clear replay memory and variables. A B 3(All) = Basic Calculations k Arithmetic Calculations COMP Use the F key to enter the COMP Mode when you want to perform basic calculations. · Independent memory uses the same memory area as variable M. · To clear independent memory (M), input 0 A j 3 (M+). · Example: 23 53 ) 45 9 6 2 32 47 90 ­11 23 + 9 A j 3 (M+) 53 , 6 | 45 - 2 A { (Total) 0 3 (M+) k Variables · There are nine variables (A through F, M, X and Y), which can be used to store data, constants, results, and other values. · Use the following operation to delete data assigned to a 17 particular variable: 0 A j 1. This operation deletes the data assigned to variable A. · Perform the following key operation when you want to clear the values assigned to all of the variables. A B 1(Mcl) = · Example: 193. 2 Ö 23 193. 2 Ö 28 8. 4 6. 9 193. 2 A j 1 \ 23 = p 1 \ 28 = Scientific Function Calculations COMP Use the F key to enter the COMP Mode when you want to perform basic arithmetic calculations. COMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F 1 · Certain types of calculations may take a long time to complete. · Wait for the result to appear on the display before starting the next calculation. · = 3. 14159265359 k Trigonometric/Inverse Trigonometric Functions · To change the default angle unit (degrees, radians, grads), press the F key a number of times until you reach the angle unit setup screen shown below. Deg Rad G r a 1 2 3 · Press the number key (1, 2, or 3) that corresponds to the angle unit you want to use. (90° = 2 radians = 100 grads) 18 · Example 1: sin 63 °52o41 0. 897859012 q . . . . . [. . . ] 8 Permutation and combination: nPr, nCr * 9 Dot (·)** 0 , Ö !, @ and* # xnor*, xor*, or* 34 * fx-100MS/fx-115MS/fx-570MS/fx-991MS only. · Operations of the same precedence are performed from right to left. exIn 120 ex{In( 120)} · Other operations are performed from left to right. · Operations enclosed in parentheses are performed first. [. . . ]